Conditions For Setting DTC
WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, 2002 Chevrolet Monte Carlo, and 2002 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
- HO2S 2 signal voltage remains between 408-512 mV for more than 90 seconds.
- There is a Throttle Position (TP) sensor angle change of more than 8 percent, at least twice during the test period.